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coredns.io

https://coredns.io· First analyzed 12 May 2026· Updated 12 May 2026
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coredns.io
Desktop screenshot of coredns.io
Mobile screenshot of coredns.io
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

75.2.60.5

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Seattle, United States

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Server

Netlify

Nameservers

linode.atoom.net.ns-ext.nlnetlabs.nl.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
479 ms10%
Speed Index
623 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2 MB
31 requests
0–49
50–89
90–100

Architecture Stack

JAMstack
⚡ SSG
Frontend
Framework
Hugov0.100.2
Infrastructure
Platform
Netlify

Technology Stack

4 Technologies Detected

Libraries

1
jQueryv2.1.4

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Platforms

1
Netlify

SEO Analysis

C64/100
19
6
1
Meta Tags7/15
Content9/12
Headings5/8
Technical16/25
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
C
coredns.iocoredns.io

CoreDNS: DNS and Service Discovery

No description available for this page.

Title Length34 chars

Recommended: 50-60 chars (~204px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

470 URLs

robots.txt

Local SEO

Local Search Readiness

3/100
Poor
1 14 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
13/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
code blocksnavheader/footer
Text ratio:19%
Words:305
Token eff.:Optimal
Sections/1K:23
Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary51w
Descriptive Headingsavg 2.1w
Canonical URL
Open Graph2/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
B
77/100
10
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •Accessibility recommendation preview...
Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
58/100
C
205 mg
CO₂e / view
2.0 MB
Page Weight
50%
Cleaner Than
New Visitor
235 mg
vs
Returning (cached)
117 mg
Annual (10K/mo)
24.6 kg
Emission Segments
Data Center
10 mg
Network
60 mg
Device
135 mg
Resource Breakdown
JavaScript
43.6 KB
Images
365.4 KB
CSS
1.6 MB
HTML
2.9 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Static / Informational

HTTPS

No WAF

81d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.05.2026

Valid Until

02.08.2026

Subject Alternative Names (2)

coredns.iowww.coredns.io

SHA-256 Fingerprint

6F:50:D4:2A:87:A1:1D:4E:2A:FB:05:FD:C3:C2:3D:E1:CB:97:A7:24...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
age
28159
cache-control
🟡 0s(public,max-age=0,must-revalidate)
cache-status
"Netlify Edge"; hit
content-encoding
⚡ Brotli(br)
content-length
2625
Good Warning Issue

Email Infrastructure

Google Workspace

Score

20

SPF
DKIM
DMARC

MX Records (5)

aspmx.l.google.com
alt1.aspmx.l.google.com
aspmx2.googlemail.com
alt2.aspmx.l.google.com

+1 more

Domain Information

coredns.io

Domain Age
9y 9m

Created

05.08.2016

Expires

05.08.2026

Last Updated

26.11.2025

Registrar

Key-Systems GmbH

DNSSEC
Not Enabled

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
C
60/100
Mobile Friendly1 breakpoint
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Lato

WCAG AA
78/100
Readability
/30
27/30

16px · LH 1.50

Hierarchy
/20
16/20

4x ratio

WCAG
/25
22/25

6.1:1 min contrast

Performance
/25
13/25

1 font · 6 req

Heading Font

Lato

Sans64px

Body Font

Lato

Sans16px

Contrast Ratio

6.1:1

WCAG AA (≥4.5:1)

Reading Comfort

~41 CPL

Narrow lines
64px
h1
24px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.1:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 4.0x larger than body text.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 61

Color Palette

8 unique colors
4.05:1 AA Large Light
#ffffff
Text· 91.4%
#827b8f
Secondary· 1.4%
#181522
Primary· 1.7%
#2d1e51
Secondary· 1.1%
#4d445c
Secondary· 1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

13 Resources

5
Scripts
8
Styles
0
Async
0
Defer

Top Script Sources

local(5)

Website Identity

coredns.io

9 years old
Location detected: 🇺🇸 United Statesvia ip
Key-Systems GmbH📧 Google Workspaceen-us

Social Profiles

X (Twitter)GitHub

Sponsored

Last analyzed: 12 May 2026 at 17:25

Historical Analysis & Change Tracking